CN110303851A - A kind of vehicular oxygen enrichment system and method based on fresh air supply automatic adjusument - Google Patents
A kind of vehicular oxygen enrichment system and method based on fresh air supply automatic adjusument Download PDFInfo
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- CN110303851A CN110303851A CN201910683570.8A CN201910683570A CN110303851A CN 110303851 A CN110303851 A CN 110303851A CN 201910683570 A CN201910683570 A CN 201910683570A CN 110303851 A CN110303851 A CN 110303851A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/0007—Adding substances other than water to the air, e.g. perfume, oxygen
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
- B60H3/00—Other air-treating devices
- B60H3/02—Moistening ; Devices influencing humidity levels, i.e. humidity control
- B60H3/022—Moistening ; Devices influencing humidity levels, i.e. humidity control for only humidifying the air
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Abstract
The invention discloses a kind of vehicular oxygen enrichment system and method based on fresh air supply automatic adjusument, the vehicular oxygen enrichment system based on fresh air supply automatic adjusument, including ventilation shaft and control chip；1 big oxygen exhaust and 5 small oxygen exhausts are provided on ventilation shaft, big oxygen exhaust is located in the middle part of roof, and small oxygen exhaust is located above vehicle seat；Big oxygen exhaust and small oxygen exhaust inlet are equipped with electric butterfly valve, ventilation shaft main pipeline and connect and are equipped with electric control valve on the lateral of oxygen exhaust；Control chip can control the closing of electric butterfly valve and electric control valve and unlatching and control interior oxygen supply mode.The present invention comprehensively considers ventilation mode, fresh air volume, the adjusting that the various aspects factor such as passengers quantity and the oxygen demand of passenger is supplied oxygen in car, and the waste of oxygen is in turn avoided by the oxygen comfort that effective oxygen supply to sedan-chair passenger inside the vehicle had both significantly improved sedan-chair vehicle occupant.
Description
Technical field
The invention belongs to plateau oxygen-enriched environment design fields, and in particular to a kind of vehicle based on fresh air supply automatic adjusument
Load formula oxygen enrichment system and method.
Background technique
Since height above sea level increases, place is closed, environmental pollution causes the interior oxygen deficit problem of the high altitude localities such as Lhasa always
Drastically influence the personal safety of driver and passenger.The primary resident in especially these areas is generally engaged in agriculture, animal husbandry etc.
Industry, taxi driver is most of to migrate crowd, originally cannot adapt to the anaerobic environment of highlands, along with car
Place closing, the discomfort of anoxic is more strong when passenger is more.Therefore, it is particularly important to solve interior oxygen deficit problem.
In order to solve this problem, someone onboard installs portable oxygenerator, for the oxygen supply to car, due to interior meeting
Fresh air is introduced through normally open air-conditioning, prevent the oxygen that oxygenerator is produced is from dramatically increasing interior oxygen concentration, causing cannot be effective
Improve interior oxygen environment.Someone supplies oxygen the method combined with disperse using individually oxygen supply to passenger, but also only considered closing vehicle
Compartment, there is no the states of introducing fresh air when considering air-conditioning system or windowing, and do not account for the limitation of car available space, institute
It needs oxygen-supplying amount to cause oxygenerator to occupy very large space greatly very much and prevents vehicle-mounted oxygen processed from effectively being applied.
In conclusion how oxygenerator to be combined with interior oxygen automatic control system, car oxygen when eliminating introducing fresh air
The problem that gas concentration is insufficient and car space is limited, and realize effective waste supplied oxygen and do not cause oxygen to passenger inside the vehicle
It is current problem to be solved.
Summary of the invention
The purpose of the present invention is to provide it is a kind of based on fresh air supply automatic adjusument vehicular oxygen enrichment system and method,
Oxygen environment in car is regulated and controled using oxygen few as far as possible, interior oxygen is solved on the basis of original portable oxygen not
The problem of foot or waste and passenger effectively supply oxygen.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of vehicular oxygen enrichment system based on fresh air supply automatic adjusument, including ventilation shaft and control chip；It is logical
1 big oxygen exhaust and 5 small oxygen exhausts are provided in air piping, big oxygen exhaust is located in the middle part of roof, and small oxygen exhaust is located at vehicle seat
Top；Big oxygen exhaust and small oxygen exhaust inlet are equipped with electric butterfly valve, ventilation shaft main pipeline and the branch for connecting oxygen exhaust
Electric control valve is equipped on pipeline；Control chip can control the closing and unlatching and control of electric butterfly valve and electric control valve
Make interior oxygen supply mode；
Electric butterfly valve includes: the first electric butterfly valve, the second electric butterfly valve, third electric butterfly valve, the 4th electric butterfly valve, the 5th
Electric butterfly valve, the 7th electric butterfly valve, the 9th electric butterfly valve and the tenth electric butterfly valve；First electric butterfly valve is set at copilot
The inlet of small oxygen exhaust, the second electric butterfly valve are set to the inlet of the small oxygen exhaust at main driving, and third electric butterfly valve is set
The inlet of the small oxygen exhaust of back row seat after being placed in copilot, the 4th electric butterfly valve are set to the middle seat of back row seat
Small oxygen exhaust inlet, the 5th electric butterfly valve is set to the entrance of the small oxygen exhaust of the back row seat after main driving
Place, the 7th electric butterfly valve are set in vapor import, and the 9th electric butterfly valve is set to big oxygen exhaust inlet, the tenth electronic butterfly
Valve is set to the junction of dress circle distribution oxygen supply pipeline and ventilation shaft；
Electric control valve includes: the first electric control valve, the second electric control valve and third electric control valve；First is electronic
Regulating valve is set to dress circle distribution oxygen supply pipeline and disperse formula oxygen supply pipeline and ventilation shaft common connection, the second electricity
Dynamic regulating valve is set to back row seat distribution oxygen supply pipeline and ventilation shaft junction, and third electric control valve is set to oxygen
In import；
Oxygen supply mode includes the oxygen supply of disperse formula and distributed oxygen supply:
When disperse formula supplies oxygen, the 7th electric butterfly valve, third electric control valve, the first electric control valve and the 9th electric butterfly valve
It opens, the second electric control valve and the tenth electric butterfly valve are closed；
When distribution oxygen supply, the 7th electric butterfly valve, third electric control valve, the second electric control valve, the first motorized adjustment
Valve and the tenth electric butterfly valve are opened, and the 9th electric butterfly valve is closed, and the first electric butterfly valve and the second electric butterfly valve are opened in turn, are supplied oxygen
Between be divided into 6-10 seconds；Two are opened in the electric butterfly valve of third, the 4th and the 5th simultaneously, oxygen supply interval is set as 5 seconds, just every 5 seconds
There is an electric butterfly valve to close in turn, i.e., 15 seconds be a period, every passenger have 10 seconds the oxygen supply period and 5 seconds oxygen feeding stops
Period.
It further, further include the inner-outer circulation induction system being connect with control chip, when vehicle window unlatching or air conditioning for automobiles
When outer circulation, supplied oxygen using distribution；It is supplied oxygen when air conditioning for automobiles uses interior circulation using disperse formula.
It further, further include being set to infrared sensor connected to the control chip on vehicle window and being set to interior red
External transmitter, when vehicle window is opened, infrared sensor does not receive infrared transmitter signal, and control chip controls are supplied using distributed
Oxygen.
Further, vehicle seat is equipped with pressure sensor connected to the control chip, pressure sensor detect vehicle seat without
When people, small oxygen exhaust inlet electric butterfly valve is closed above control chip controls vehicle seat.
It further, further include oxygen-sensitive sensor connected to the control chip, oxygen-sensitive sensor is set to often
On a backrest, for detecting the oxygen concentration of local oxygen supply, to adjust the size that each electric control valve is opened；Work as inspection
When the oxygen concentration of survey is less than 23%, electric control valve valve is opened greatly, increases oxygen flow out, when the oxygen concentration of detection is greater than
When 23%, electric control valve valve is opened small, reduces oxygen flow out.
It further, further include being located at interior and connected to the control chip and oxygen concentration detector, oxygen concentration inspection
Device is surveyed to be set in the middle part of roof, when detecting that oxygen concentration in the car reaches 25%, oxygen feeding stop.
Further, big oxygen exhaust diameter be 10mm, by gasket and telescoping tube be connected with can 180 ° rotation it is rotatable
Air port is arranged in the middle part of covering for roofs；
Small oxygen exhaust is located above seat at 20cm, external spherical shape efflux nozzle, diameter 6mm；Small oxygen exhaust and flexible
Pipe connection, telescoping tube is interior to be made telescoping tube extending or shortens equipped with getter device and circular electric mobile gasket, and small oxygen exhaust is opened
Rear indicator light is bright.
Further, ventilation shaft is converged by vapor import and oxygen inlet and is formed, vapor in conjunction with oxygen after give
Enter car, third electric control valve is equipped at oxygen inlet, vapor entrance is equipped with the 7th electric butterfly valve.
Further, interior to be additionally provided with the humidity sensor being connected with control chip, humidity sensor is set to vehicle
At door, the 7th electric butterfly valve is adjusted by control chip and controls vehicle humidity.
Compared with the prior art, the invention has the following beneficial effects:
1, it by oxygen in conjunction with vapor, is humidified while being supplied oxygen in car, enhances the comfort of human body；
2, pressure sensor is housed on seat, opening for small oxygen exhaust can be controlled according to the variation of sedan-chair vehicle occupant when local oxygen supply
It opens；
3, infrared sensor is housed, car is provided with RF transmitter, can be according to vehicle window on the vehicle window in car
Open the variation for adjusting offering oxygen way；
4, car control chip is connect with air-conditioning inner-outer circulation induction system, can be according to the opening ways of air-conditioning inner-outer circulation
Adjust the variation of offering oxygen way；
5, on the backrest in car and middle position be equipped with oxygen concentration detection device, can real-time detection oxygen it is dense
It spends and carries out oxygen supply adjusting rapidly.
6, the present invention comprehensively considers ventilation mode, fresh air volume, each side such as passengers quantity and the oxygen demand of passenger in car
The adjusting that face factor is supplied oxygen both had significantly improved the oxygen comfort of sedan-chair vehicle occupant by effective oxygen supply to sedan-chair passenger inside the vehicle
In turn avoid the waste of oxygen.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide further understanding of the present invention, and of the invention shows
Examples and descriptions thereof are used to explain the present invention for meaning property, does not constitute improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is that the present invention is based on the vehicular oxygen enrichment system structure charts that fresh air feeds automatic adjusument；
Fig. 2 is that the present invention is based on the small oxygen exhaust schematic enlarged-scale views of vehicular oxygen enrichment system that fresh air feeds automatic adjusument；
Fig. 3 is that the present invention is based on the big oxygen exhaust schematic enlarged-scale views of vehicular oxygen enrichment system that fresh air feeds automatic adjusument；
Fig. 4 is that the present invention is based on the vehicular oxygen enrichment system oxygen and steam entry structure that fresh air feeds automatic adjusument
Figure；
Fig. 5 is the vehicular oxygen enrichment system oxygen supply mode adjusting schematic diagram that automatic adjusument is fed the present invention is based on fresh air；
Fig. 6 is the vehicular oxygen enrichment system disperse oxygen supply regulation schematic diagram that automatic adjusument is fed the present invention is based on fresh air；
Fig. 7 is the vehicular oxygen enrichment system distributing oxygen supply regulation schematic diagram that automatic adjusument is fed the present invention is based on fresh air；
Wherein: 1 pressure sensor, 2 infrared sensors, 3 small oxygen exhausts, 4 first electric butterfly valves, 5 indicator lights, 6 humidity pass
Sensor, 7 infrared transmitters, 8 oxygen concentration detectors, 9 second electric butterfly valves, 10 first electric control valves, 11 big oxygen exhausts, 12
Telescoping tube, 13 gaskets, 14 rotatable air ports, 15 triple valves, 16 control chips, 17 oxygen-sensitive sensors, 18 vapor imports,
It is 19 oxygen inlets, 22 getter devices, 23 circular electric mobile gaskets, 24 third electric butterfly valves, 25 the 4th electric butterfly valves, 26 the 5th electronic
Butterfly valve, 27 second electric control valves, 29 the 7th electric butterfly valves, 30 third electric control valves, 31 the 9th electric butterfly valves, 32 the tenth electricity
Dynamic butterfly valve.
Specific embodiment
The present invention will be described in detail below with reference to the accompanying drawings and embodiments.It should be noted that in the feelings not conflicted
Under condition, the features in the embodiments and the embodiments of the present application be can be combined with each other.
Following detailed description is exemplary explanation, it is intended to provide further be described in detail to the present invention.Unless another
It indicates, all technical terms of the present invention contain with the normally understood of the application one of ordinary skill in the art
Justice is identical.Term used in the present invention is merely to describe specific embodiment, and be not intended to limit according to the present invention
Illustrative embodiments.
As shown in Figure 1, five type cars of a standard, the oxygen that the vapor and oxygenerator produced by humidifier are produced
It is interior in conjunction with being sent into.
A kind of vehicular oxygen enrichment system based on fresh air supply automatic adjusument, including ventilation shaft and control chip 16；
The small oxygen exhaust 3 of 1 big oxygen exhaust 11 and 5 is provided on ventilation shaft, big oxygen exhaust 11 is located in the middle part of roof, small oxygen exhaust 3
Above vehicle seat；Big oxygen exhaust 11 and 3 inlet of small oxygen exhaust are equipped with electric butterfly valve, ventilation shaft main pipeline and connect out
Electric control valve is equipped on the lateral of oxygen mouth；Control chip 16 can control the closing of electric butterfly valve and electric control valve
With unlatching and the interior oxygen supply mode of control.
Electric butterfly valve includes: the first electric butterfly valve 4, the second electric butterfly valve 9, third electric butterfly valve 24, the 4th electric butterfly valve
25, the 5th electric butterfly valve 26, the 7th electric butterfly valve 29, the 9th electric butterfly valve 31 and the tenth electric butterfly valve 32；First electric butterfly valve 4
It is set to the inlet of the small oxygen exhaust 3 at copilot, the second electric butterfly valve 9 is set to entering for the small oxygen exhaust 3 at main driving
At mouthful, third electric butterfly valve 24 is set to the inlet of the small oxygen exhaust 3 of the back row seat after copilot, the 4th electric butterfly valve 25
It is set to the inlet of the small oxygen exhaust 3 of the middle seat of back row seat, the 5th electric butterfly valve 26 is set to main driving
The inlet of the small oxygen exhaust 3 of back row seat afterwards, the 7th electric butterfly valve 29 are set in vapor import 18, the 9th electronic butterfly
Valve 31 is set to big 11 inlet of oxygen exhaust, and the tenth electric butterfly valve 32 is set to dress circle distribution oxygen supply pipeline and ventilation duct
The junction in road；
Electric control valve includes: the first electric control valve 10, the second electric control valve 27 and third electric control valve 30；The
One electric control valve 10 is set to dress circle distribution oxygen supply pipeline and disperse formula oxygen supply pipeline and connect jointly with ventilation shaft
Place, the second electric control valve 27 are set to back row seat distribution oxygen supply pipeline and ventilation shaft junction, third motorized adjustment
Valve 30 is set in oxygen inlet 19；
It further, further include the inner-outer circulation induction system being connect with control chip 16, when vehicle window unlatching or automobile are empty
When adjusting outer circulation, supplied oxygen using distribution；It is supplied oxygen when air conditioning for automobiles uses interior circulation using disperse formula.
It further, further include being set to the infrared sensor 2 being connected on vehicle window with control chip 16 and being set to car
Infrared transmitter 7, when vehicle window is opened, infrared sensor 2 does not receive 7 signal of infrared transmitter, and the control control of chip 16 is adopted
It is supplied oxygen with distribution.
Further, vehicle seat is equipped with the pressure sensor 1 being connected with control chip 16, and pressure sensor 1 detects vehicle
Seat nobody when, control chip 16 controls small 3 inlet electric butterfly valve of oxygen exhaust above the vehicle seat and closes.
It further, further include the oxygen-sensitive sensor 17 being connected with control chip 16, oxygen-sensitive sensor 17 is set
It is placed on each backrest, for detecting the oxygen concentration of local oxygen supply, to adjust the big of each electric control valve unlatching
It is small；When the oxygen concentration of detection is less than 23%, electric control valve valve is opened greatly, increases oxygen flow out, when the oxygen of detection is dense
When degree is greater than 23%, electric control valve valve is opened small, reduces oxygen flow out.
Further, further include positioned at it is interior and be connected with control chip 16 and oxygen concentration detector 8, oxygen concentration
Detector 8 is set in the middle part of roof, when detecting that oxygen concentration in the car reaches 25%, oxygen feeding stop.
Further, big 11 diameter of oxygen exhaust be 10mm, by gasket 13 and telescoping tube 12 be connected with can 180 ° rotation
Rotatable air port 14 is arranged in the middle part of covering for roofs；
Small oxygen exhaust 3 is located above seat at 20cm, external spherical shape efflux nozzle, diameter 6mm；It small oxygen exhaust 3 and stretches
The draw 12 connects, and is equipped with getter device 22 in telescoping tube 12 and circular electric mobile gasket 2313 makes telescoping tube 12 extending or contracts
Short, it is bright that small oxygen exhaust 3 opens rear indicator light 5.
Further, ventilation shaft is converged by vapor import 18 and oxygen inlet 19 and is formed, and vapor is in conjunction with oxygen
It is sent into car afterwards, third electric control valve 30 is equipped at oxygen inlet 19, is equipped with the 7th electric butterfly valve 29 at vapor import 18.
Further, interior to be additionally provided with the humidity sensor 6 being connected with control chip 16, humidity sensor 6 is arranged
At car door, the 7th electric butterfly valve 29 is adjusted by control chip 16 and controls vehicle humidity.
It is a kind of based on fresh air supply automatic adjusument vehicular oxygen enrichment system working method, including disperse formula oxygen supply and
Distribution oxygen supply:
When disperse formula supplies oxygen, the 7th electric butterfly valve 29, third electric control valve 30, the first electric control valve 10 and the 9th electricity
Dynamic butterfly valve 31 is opened, and the second electric control valve 27 and the tenth electric butterfly valve 32 are closed；
When distribution oxygen supply, the 7th electric butterfly valve 29, third electric control valve 30, second the 27, first electricity of electric control valve
Dynamic regulating valve 10 and the tenth electric butterfly valve 32 are opened, and the 9th electric butterfly valve 31 is closed, the first electric butterfly valve 4 and the second electric butterfly valve
9 open in turn, are divided between oxygen supply 6-10 seconds；Two are opened in the electric butterfly valve 26 of third, the 4th and the 5th simultaneously, oxygen supply interval is set
It is 5 seconds, just had an electric butterfly valve to close in turn every 5 seconds, i.e., 15 seconds is a period, and every passenger there are 10 seconds oxygen supply periods
With 5 seconds oxygen feeding stop periods.
Disperse oxygen-supplying model are as follows:
When opening interior circulation, interior volume 3m3, required amount of oxygen is (0.24-0.2095) × 3m at this time3=
0.0915m3=91.5L can build car at oxygen-enriched environment in 15 minutes when turn-on flow rate is 6L/min.So working as
It is interior when there is no air exchange with outdoor environment, oxygenerator is opened to after 6L/min 15 minutes, is 5 people by number of people in car, this
When oxygen demand be 0.017 × 1000/60=1.42L/min, so oxygenerator is transferred to 1.5L/min automatically, maintain interior oxygen permanent
It is fixed.
The outer circulation disperse oxygen-supplying model are as follows:
In view of the actual conditions of engineer application, when establishing practical computation model, reasonable hypothesis is made to relevant parameter
For the sake of choice simplicity, it is assumed that fresh air, air draft, oxygen supply and the temperature of human body oxygen consumption, pressure condition are identical, the density of the above parameter
Numerically difference is little, can approximation take identical value, volumetric balance side just can be used in the equilibrium equation in relation to gaseous mass in this way
Journey replaces.
It is with standard five-seater car (environmental control system with certain airtightness, herein refer to standard automobile compartment)
Control volume carries out the analysis of oxygen amount balance using control volume mothod.Following table is that automotive interior surveys size table:
The interior actual measurement size table of table 1
| Size name | Numerical value (mm) | Size name | Numerical value (mm) |
| Car room is wide | 1300 | Car room is high | 1200 |
| Chinese herbaceous peony window width | 1280 | Windscreen is high | 700 |
| Window width after vehicle | 960 | Vehicle rear window is high | 500 |
| Front-seat seat is high | 280 | Heel row seat is high | 350 |
| The front-seat chair back is high | 600 | The heel row chair back is high | 480 |
| Front-seat seat is deep | 490 | Heel row seat is deep | 500 |
| Front-seat seat is thick | 120 | Heel row seat is thick | 120 |
| Front-seat seat is wide | 520 | Front-seat two seat spacings | 160 |
| Front and rear row seat spacing | 300 | Front row is away from instrument desk | 250 |
| Instrument desk is deep | 410 | Instrument desk is high | 340 |
Interior oxygen feeding amount includes fresh air oxygen amount and artificial oxygen source oxygen-supplying amount two parts, automobile go out oxygen amount include air draft oxygen amount and
Human consumption oxygen amount.After car starts oxygen supply, it is desirable that oxygen partial pressure remains necessary oxygen voltage levels in cockpit, then supplies oxygen
The oxygen content in cockpit should be constant always in the process, i.e., oxygen content changing value is zero.It balances to obtain according to amount of oxygen any
The mass-conservation equation of moment or a certain height above sea level:
Above formula is deformed are as follows:
In formula--- oxygen-supplying amount, m3/h；
VX--- fresh air volume (hygienic fresh air volume and pressurization fresh air volume), m3/h；
VP--- exhaust air rate (controllable exhaust air rate and inleakage), m3/h；
NX--- the volume fraction of oxygen in fresh air, 20.95%；
NP--- the volume fraction of oxygen, % in air draft；
--- the amount of oxygen of human consumption, m3/h；
The simplification of computation model:
(1) consumption of human body oxygen.
Carbon dioxide occurrence quantity when normal person is seated is about 0.014m3/ (h people), breathing entropy presses 0.85, then by the external world
The oxygen amount of intake is about 0.014/0.85=0.017m3/ (h people).The oxygen of visible human body itself consumption just corresponds to
0.08m3The corresponding amount of oxygen of fresh air of/(h people) is much smaller than human physiology fresh air volume, illustrates the opposite of human consumption oxygen
Measure very little.Therefore this is neglected on the right side of (1-2) formula, and (1-2) formula is rewritten are as follows:
(2) relationship of intake and exhaust air rate
Interior oxygen content should be stablized in certain level under design condition, but since interior air pressure is not constant
, thus interior air quality should also change therewith, this also just determines that intake and exhaust air rate must meet certain pass
System.Still using vehicle as control volume, the analysis of total blast volume balance is carried out.For 0~τ of period, into, exhaust air rate difference be equal to it is interior empty
The difference of the air capacity of 0 car of air capacity and moment of gas variable quantity, i.e. time instant τ car.According to The Ideal-Gas Equation, for
Interior air meets following formula relationship:
Then:
Wherein:
To the formula two sides (1-5) about the derivation of time τ, obtain:
V in formulaP--- interior exhaust air rate, m3/h；
VJ--- interior intake, m3/h；
VC--- interior net capacity, m3；
The gas constant of R --- air, 287J/ (kgK)；
TN--- the temperature of in-vehicle air, K；
pN--- interior atmospheric pressure, KPa；
The density of ρ --- in-vehicle air, kg/m3.If the air pressure of Lhasa is 65.7kPa, then corresponding density is 0.604kg/
m3。
When disperse offering oxygen way, it is believed that the inner and outer air pressure of vehicle will be always consistent, then the change rate of interior air pressure is by same
The ambient pressure change rate of height above sea level considers.Therefore, in (1-7) formulaItem can be ignored, so that approximation obtains
In car running process, intake is equal to exhaust air rate；That is:
VJ=VP (1-8)
Formula (1-4) to (1-8) simultaneous is brought into formula (1-3), is obtained:
(3) in air draft the concentration by volume of oxygen determination.
If oxygen-enriched blasting can be mixed uniformly with in-vehicle air, and using average oxygen partial pressure as meeting human body respiration requirement
Control parameter can then use the oxygen partial pressure of air draft as average oxygen partial pressure to characterize interior oxygen partial pressure completely.That is:
P in formula0--- the oxygen partial pressure in interior atmosphere, kPa；
pN--- local air atmosphere pressure, kPa.
Formula (1-10) is substituted into formula (1-9), is obtained:
Thus the oxygen-supplying amount expression formula of practical is obtained.The formula is using relative closure space as control volume, using control
Volume method processed simultaneously carries out necessary simplification and the oxygen-supplying amount expression formula derived, can not find out specific physical significance.By VP
=VX+VO2Above formula is substituted into, is arranged:
As can be seen from the above equation, as long as the average oxygen partial pressure always entered the wind has reached the level of human body needs, room air
Oxygen content is just able to satisfy human body respiration needs.
Further, specific disperse oxygen supply calculates:
By the principle of disperse oxygen supply it is found that vehicle inner and outer air pressure is consistent substantially, pN=pW, substitute into formula (1-11), needed
Oxygen amount expression formula are as follows:
Atmospheric pressure with height above sea level (H≤11km) changing rule are as follows:
pW=101.3 × (1-1.257H × 10-5)5.256 (1-12)
H is height above sea level, m in formula.
The air pressure of Lhasa is 3650m, car oxygen supply to 24%, corresponding oxygen-supplying amount are as follows:
V in formulaPFor interior exhaust air rate, m3/h；
If it is 6L/min that disperse, which supplies oxygen oxygenerator flow, substitute into formula (1-13), then disperse supplies oxygen accessible exhaust air rate pole
It is limited to 9.3m3/ h, rate of ventilation are about 3 times/h.It is greater than 9.3m when opening outer circulation and exhaust air rate3When/h, supplied oxygen using disperse
Mode.And the relationship of required oxygen flow and exhaust air rate is formula (1-13) described.
Oxygen flow is 0.36m3/ h, the diameter of circular duct size are 8mm, and air hose basal area is 0.00005m2, in air hose
Oxygen gas flow rate is 0.36/3600/0.00005=2m/s.Air outlet is using round air outlet, diameter 8mm, and oxygen speed is out
2m/s。
The local oxygen supply model are as follows:
Outer circulation, which is opened, when vehicle is greater than 9.3m3When/h, by the way of local oxygen supply；When opening vehicle window, the ventilation of vehicle
Amount will greatly increase, and vehicle is gravity-flow ventilation at this time, and ventilation quantity is far longer than 9.3m3/ h, so when automobile windowing, oxygen supply side
Formula is also by the way of local oxygen supply.
Local oxygen supply oxygen flow is 2L/min, and when interior seat all occupies, required oxygenerator maximum stream flow is 6L/
min。
In conclusion maximum amount of oxygen needed for car oxygen enrichment system is 6L/min, this oxygen supply mode is car saving
Big quantity space.
When local oxygen supply uses intermittent oxygen supply, oxygen supply interval calculation is as follows:
Small oxygen supply port diameter is 6mm, oxygen flow 0.12m3/ s, oxygen exhaust concentration difference Δ x0For 0.95-0.21=0.74,
Then away from axle center concentration difference at oxygen exhaust 0.3m are as follows:
That is axle center concentration Δ xmFor 0.35+0.21=0.56, it is seen that oxygen concentration can satisfy human body requirements completely.
It the use of oxygenerator is respectively 4s, 5s, 6s to intermittent oxygen supply time interval, 7s, 8s, 9s, 10s have carried out simple reality
Requirement can be consistently achieved away from oxygen concentration at oxygen exhaust 30cm when being divided into 6s in 12s by testing between rear discovery time.Therefore using interval
6s is divided between oxygen supply time.
As known by the technical knowledge, the present invention can pass through the embodiment party of other essence without departing from its spirit or essential feature
Case is realized.Therefore, embodiment disclosed above, in all respects are merely illustrative, not the only.Institute
Have within the scope of the present invention or is included in the invention in the change being equal in the scope of the present invention.
Claims (10)
1. a kind of vehicular oxygen enrichment system based on fresh air supply automatic adjusument, which is characterized in that including ventilation shaft and control
Coremaking piece；1 big oxygen exhaust and 5 small oxygen exhausts are provided on ventilation shaft, big oxygen exhaust is located in the middle part of roof, small oxygen exhaust
Above vehicle seat；Big oxygen exhaust and small oxygen exhaust inlet are equipped with electric butterfly valve, ventilation shaft main pipeline and connect out oxygen
Electric control valve is equipped on the lateral of mouth；Control chip can control the pass closing and opening of electric butterfly valve and electric control valve
Open and control interior oxygen supply mode.
2. the vehicular oxygen enrichment system according to claim 1 based on fresh air supply automatic adjusument, which is characterized in that also wrap
The inner-outer circulation induction system connecting with control chip is included, when vehicle window unlatching or air conditioning for automobiles outer circulation, is supplied using distribution
Oxygen；It is supplied oxygen when air conditioning for automobiles uses interior circulation using disperse formula.
3. the vehicular oxygen enrichment system according to claim 1 based on fresh air supply automatic adjusument, which is characterized in that also wrap
It includes and is set to infrared sensor connected to the control chip on vehicle window and is set to interior infrared transmitter, when vehicle window is opened,
Infrared sensor does not receive infrared transmitter signal, and control chip controls are using distributed oxygen supply.
4. the vehicular oxygen enrichment system according to claim 1 based on fresh air supply automatic adjusument, which is characterized in that vehicle seat
Pressure sensor connected to the control chip is installed, pressure sensor detect vehicle seat nobody when, control the chip controls vehicle
Seat top small oxygen exhaust inlet electric butterfly valve is closed.
5. the vehicular oxygen enrichment system according to claim 1 based on fresh air supply automatic adjusument, which is characterized in that also wrap
Oxygen-sensitive sensor connected to the control chip is included, for detecting the oxygen concentration of local oxygen supply, to adjust each electronic
The size that regulating valve is opened；When the oxygen concentration of detection is less than 23%, electric control valve valve is opened greatly, increases oxygen flow out,
When the oxygen concentration of detection is greater than 23%, electric control valve valve is opened small, reduces oxygen flow out.
6. the vehicular oxygen enrichment system according to claim 1 based on fresh air supply automatic adjusument, which is characterized in that also wrap
It includes and stops positioned at oxygen concentration detector interior and connected to the control chip when detecting that oxygen concentration in the car reaches 25%
Only supply oxygen.
7. the vehicular oxygen enrichment system according to claim 1 based on fresh air supply automatic adjusument, which is characterized in that go out greatly
Oxygen mouth diameter be 10mm, by gasket and telescoping tube be connected with can 180 ° rotation rotatable air ports, be arranged in the middle part of covering for roofs；
Small oxygen exhaust is located above seat at 20cm, external spherical shape efflux nozzle, diameter 6mm；Small oxygen exhaust and telescoping tube connect
It connects, is equipped with getter device in telescoping tube and circular electric mobile gasket makes telescoping tube extending or shortens, small oxygen exhaust refers to after opening
Show that lamp is bright.
8. the vehicular oxygen enrichment system according to claim 1 based on fresh air supply automatic adjusument, which is characterized in that ventilation
Pipeline is converged by vapor import and oxygen inlet to be formed, vapor in conjunction with oxygen after be sent into interior, be equipped at oxygen inlet
Third electric control valve, vapor entrance are equipped with the 7th electric butterfly valve.
9. the vehicular oxygen enrichment system according to claim 1 based on fresh air supply automatic adjusument, which is characterized in that interior
It is additionally provided with the humidity sensor being connected with control chip, it is interior wet to adjust the control of the 7th electric butterfly valve by control chip
Degree.
10. a kind of working method of the vehicular oxygen enrichment system based on fresh air supply automatic adjusument, which is characterized in that based on power
Benefit requires the vehicular oxygen enrichment system of the described in any item fresh air supply automatic adjusuments of 1-9, including the oxygen supply of disperse formula and distribution
Formula oxygen supply:
When disperse formula supplies oxygen, the 7th electric butterfly valve, third electric control valve, the first electric control valve and the 9th electric butterfly valve are opened
It opens, the second electric control valve and the tenth electric butterfly valve are closed；
Distribution oxygen supply when, the 7th electric butterfly valve, third electric control valve, the second electric control valve, the first electric control valve and
Tenth electric butterfly valve is opened, and the 9th electric butterfly valve is closed, and the first electric butterfly valve and the second electric butterfly valve are opened in turn, oxygen supply interval
It is 6-10 seconds；Two are opened in the electric butterfly valve of third, the 4th and the 5th simultaneously, oxygen supply interval is set as 5 seconds, just has one every 5 seconds
A electric butterfly valve is closed in turn, i.e., 15 seconds are a period, and every passenger has 10 seconds oxygen supply periods and when 5 seconds oxygen feeding stops
Section.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI788807B (en) * | 2021-02-26 | 2023-01-01 | 魏榮宗 | Vehicle Air Conditioning Equipment |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004330867A (en) * | 2003-05-07 | 2004-11-25 | Denso Corp | Control device for vehicular oxygen enrichment device |
| CN1727238A (en) * | 2004-07-23 | 2006-02-01 | 通用电气公司 | Oxygen enriched operator cab |
| CN200957820Y (en) * | 2007-03-15 | 2007-10-10 | 铁道科学研究院 | Oxygen-supplying system for railway coach |
| CN200960929Y (en) * | 2007-03-15 | 2007-10-17 | 铁道科学研究院 | Tableland railway car |
| KR20070111138A (en) * | 2006-05-17 | 2007-11-21 | 주식회사 현대오토넷 | Car interior air purifier and method |
| KR20120090535A (en) * | 2011-02-08 | 2012-08-17 | 한라공조주식회사 | Oxygen generating device for a car and control method thereof |
| KR20130050602A (en) * | 2011-11-08 | 2013-05-16 | 홍승훈 | Oxygen generator for car |
| CN202965896U (en) * | 2012-11-08 | 2013-06-05 | 中国人民解放军第四军医大学 | Highland vehicle-mounted aerating device |
| CN204472491U (en) * | 2015-03-16 | 2015-07-15 | 中国人民解放军装甲兵技术学院 | A kind of automatic temperature control being applied to cold district heavy-duty vehicle |
| CN107199845A (en) * | 2017-06-12 | 2017-09-26 | 吉林大学 | One kind drives indoor environment active control system and its control method |
| CN108422832A (en) * | 2018-04-10 | 2018-08-21 | 陈琪 | A kind of automobile-used oxygen supply ventilating system |
-
2019
- 2019-07-26 CN CN201910683570.8A patent/CN110303851B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004330867A (en) * | 2003-05-07 | 2004-11-25 | Denso Corp | Control device for vehicular oxygen enrichment device |
| CN1727238A (en) * | 2004-07-23 | 2006-02-01 | 通用电气公司 | Oxygen enriched operator cab |
| KR20070111138A (en) * | 2006-05-17 | 2007-11-21 | 주식회사 현대오토넷 | Car interior air purifier and method |
| CN200957820Y (en) * | 2007-03-15 | 2007-10-10 | 铁道科学研究院 | Oxygen-supplying system for railway coach |
| CN200960929Y (en) * | 2007-03-15 | 2007-10-17 | 铁道科学研究院 | Tableland railway car |
| KR20120090535A (en) * | 2011-02-08 | 2012-08-17 | 한라공조주식회사 | Oxygen generating device for a car and control method thereof |
| KR20130050602A (en) * | 2011-11-08 | 2013-05-16 | 홍승훈 | Oxygen generator for car |
| CN202965896U (en) * | 2012-11-08 | 2013-06-05 | 中国人民解放军第四军医大学 | Highland vehicle-mounted aerating device |
| CN204472491U (en) * | 2015-03-16 | 2015-07-15 | 中国人民解放军装甲兵技术学院 | A kind of automatic temperature control being applied to cold district heavy-duty vehicle |
| CN107199845A (en) * | 2017-06-12 | 2017-09-26 | 吉林大学 | One kind drives indoor environment active control system and its control method |
| CN108422832A (en) * | 2018-04-10 | 2018-08-21 | 陈琪 | A kind of automobile-used oxygen supply ventilating system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI788807B (en) * | 2021-02-26 | 2023-01-01 | 魏榮宗 | Vehicle Air Conditioning Equipment |
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|---|---|
| CN110303851B (en) | 2022-06-28 |
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